Crimping-machine



3 Sheets-Sheet 1. H. DONOVAN. GRIMPING MACHINE.

(No Model.)

No. 388,845. Patented Sept. 4, 1888.

I Il" (No Model.) 3 Sheets-Sheet 2.

H. DONOVAN. GRIMPING MACHINE. No. 388,845. Patented Sept. 4, 1888.

(No Model.) 3 Sheets-Sheet 3.

H. DONOVAN. GRIMPING MACHINE. No. 388,845` Patented Sept. 4, 1888.

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VL PETERS, PMN-LKW. WMM' D. C,

UNITED STATES PATENT OFFICE.

lIFNRY DONOVAN, OF NFV BEDFORD, hfrtsSAO/HUSI'YVI'S.

CRIMPING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 388,845, datedSeptember 4, 1888.

Application filed June 22, 199B.

To all whom it may concern:

Be it known that I, HENRY DoNovAN, of New Bedford, in the county ofBristol, State of Massachusetts, have invented a certain new and usefulImprovementin Leather-Crimping Machines, of which the following is adescription sufficiently full, clear, and exact to cnable any personskilled in the art or science to which said invention appertains to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which Figure lis asidcclevation,partly in section, of my improved leather-crimping machine; Fig. 2, afront elevation of the saine, certain parts being shown in section online xx in Fig. l; Figs. 3, 4, 5, 6, views showing certain details ofconstruction; and Fig. 7 an isometrical perspective view of the body andjaws detached.

Likelettcrs and figures of refereneeindieate corresponding parts in thedif'f'erent figures of the drawings.

My invention relates to that class of' leathen crimping machines whichare provided with adj ustable crimping-jaws and a series ofcri inpingplates or forms adapted to pass succes` sively through said jaws; and itconsists in certain novel features, as hereinafter fully set forth andclaimed, the object beingto produce a cheaper, simpler, and moreeffective device of' this character than is now in ordinary use.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation:

In the drawings, A represents the table, Z the frame-work of themachine, N the body of the crimper, and It Q, the crimping-jaws.

The frame-work consists, primarily, of two centrally-arranged verticalstandards, l, connected at the top by a brace, C.

Two vertical standards, Il, are secured to the table A in the samevertical plane, respectively, asthe standards i, and are con nectedtherewith centrally by cross bars, (if), and at thc top by a curved arm,V.

A Vertieally-arranged guide-plate, n. is secured centrally between thefront and rear standards, 15"" '1, and provided with a curved upperedge, 6l, the purpose of said plate being hereinafter described.

Serial No.

A vertically-arranged locking plate, c, is centrally disposed in thesame Vertical plane as the guide-plate fr, and is provided in its upperportion with a curved edge, 75, and a series of holes, y/,(see Fig. l.)for a purpose hereinafter described.

A horizontally-arranged shaft, L, (see Fig 2,) :is journaled in thecentral standards,B B2, and provided on its rear end with a large gear,J.

A bracket, l), projects rearward from the central standard B, ahorizantally-arranged shaft, K, being journaled in said bracket andstandard and provided with driving pulleys E F G and the pinion H, whichintermcshes with the gear J.

The body N consists, essentially, ofan oval plate, to the rear side ofwhich, near one ofits ends, is secured asleeve, 62, which is mounted onthe shaft L, a sprocket-wheel, 10, being se cured to said shaft on theface of said body. A stub-shaft, 22, projects from the opposite end ofthe body N, and mounted on said shaft there is a sprocket-wheel, l5, anendless chain belt, 20, being disposed on said sprockets and adapted totravel as the shaft L rotates. An oval track, O, is secured to the faceof the body N and follows the course of said chain. Carriers fr (seeFigs. 3 and t) are secured at intervals to the belt20, said carriersbeing provided on their under sides with grooves G3, (see Fig. 4,)having curved edges (il, to adapt them to travel on the track O as thechain 2O moves.

The crimping-plates l), of the shape usual in machines of' thisdescription, consist of a metallic plate, 13, provided with a leathercovering, 14.

Each carrier r is provided with a dovetail groove in its outer edge, aplate, l2, having a dovetail, G5, adapted to enter said groove, beingsecured by screws t to one edge of each of the crimping-plates P, thusenabling said plates to be rcadil y and detachabl y secured to saidcarriers.

rlhe crimping-jaws consist of a fixed jaagt), preferably formed integralwith the body N and projecting laterally from one side thereof', and amovablejaw, it, hinged at 66 (see Fig. I) to a frame, T, hereinafterdescribed.

The upper portion or mouth of thejaws is of the usual forni, beingtriangular in side elevation, and have their inner faces corru- IOOgated, as shown at GT in Fig. (i, the corrugal therein and through ahole, 1/. in said plate.

tions following the curve ot' the mouth ot' said jaws and increasing indistance apart as the bottom is approached.

The frame T consists of two parallel side bars, 68, (sec Fig. 1.) andtwo crossed side bars, 70, (sec Fig. 5,) one end ot' said crossed barsbeing connected with the parallel bars (SS by end bars, (t9, which arefitted to slide horizontally in holes formed in the center ot' the bodyN, the opposite ends of said side bars being connected by similareudbars, 7l, which are fitted to slide in holes iu the outer edge ot thefixed jaw (2 openings being provided in the edge of the movable jaw llto allow said end bars to pass.

The movable jaw lt is hinged atI (i6 to the bars GS, as described, and ablock, 73, being secured between said bars, near the outer edge ofsaidjaw, and provided with a thumbscrcw, q, which passes into said jaw, andby means ot which the distance between thejaws eau be regulated.

A bar, S, is secured tothe body N and fixed jaw between the parallelbars GS by means ot' braces 7G, the outcreud, 77, ofsaid bar S bcingprovided with a pin-hole, m, (see Fig. 1,) adapted to register' with theholes y/ in the locking-plate c.

By inserting a pin iu the holes my the body N may be secured in anydesired position ou the plate z.

A semicircular plate, M, is secured centrally to the sleeve (i2, nearthe standard Il, said plate being provided on its periphery with a trackor groove, p, iu which the arms ot' a forked traveler, 78, are fitted toslide, said traveler being provided with a pulley, 7.', as shown in Fig.2.

A horizontally arranged rearwardly A projectiug slotted stud,j, issecured centrally at the intersection ot' the crossed side bars Tt), acord, m, being tasteucd to said stud and passing over the pulley k, aweight, (l, being secured to the outer end of said cord. A wedgeshapcdblock, i, is secured to the crossed-bars 7() Within the study'. A rod,j', is pivoted horizontallyiu the body N, sothat its forward endprojects into the path of the carriages r above the jaws Q R, as shownin Fig. l.

To the rear end of the rod fis pivoted a vertically-arranged bar, y,which passes through the Studj,aud is provided with a wcdge'shapedblock, h, adapted to engage the wedge-block i described. A togglejoiutcdrod, b, is pivoted in the body N, so that its forward end may be made toproject into the path ot the carriages r below the jaws tg R,(see Fig.l.) the rear end ot' said rod b being pivoted to the vertical rod g,which is extended downward, so that au ordinary treadlc may be attachedthereto for operating the mechanism by foot-power, ifdesired.

In the use of my improvement the bar S is secured to the plate t: in theposition desired by means of a pin psssiug through a hole,

lowcr being appliedto one otI the pulleys ltl F (},the shalt L isrotated, causingthebclt 2010 travel from lett to right amt carry with itthe carriages )'seeurcd thereto, and with them the crimping platesl,which successively pass between the jaws RQ. The leather to be crimpedis laid upon the jaws in the usual uianner,aud as the plates pass saidjaws is bent or molded in the form desired. As a platel approaches thejaws,its carriage r strikes thc forward cud of the rod f, causing thevertical rod .(1 to be raised, thereby removing the wedge-block It t'romthe stud j. As soon as this oceu rs the weight (t, attached to said studas described, drawsbackward the sliding framework T and forces themovable jaw lt, attached thereto, against the leather to be crimped onthe plate or former l.) as it passes between the jaws. rPhe corrugationsti? ou thc inner faces ot' the jaws enable them to take a tirmcr holdupon the leather and crimp the same much more perfectly than when smoothjaws are used. lly means of the thu mbscrew q the movable jaw vIt maybeso adjusted iu relation to the jaw Q that the dii't'ercnt thicknesses iuthe same piece of leather may be readily compensated t'or. Alter theplate l. has passed through the jaws its carriage r strikes the torwardend ot' the toggle-jointed rod I, which had been thrown into its path bythe rod y as it was drawn up. 'lhis pulls the rod f] down ward again andt'orces the wcdgeeblock l1, into contact with the bloclf. i, therebymoving the frame T forward, and with it the movable jaw t, thus openingthe, jaws to receive the next plate I.

In crimpingmachines as ordinarily corr structed it is necessary to awaitthe return of the crimpingrplatc after its passage through the jawsbefore another piece ot' work can be placed in position to be crimped.ln my improved crimper the plates follow `each other successively, oneentering the jaws directly after the precedingonc leaves it, thusenabling the work to be greatly tacilitatcd. y covering the stccl platesl) completely with a leather covering, 14, as described, so that saidleather intervcues between the form and upper to be crimped, it is notnecessary to rclnove and replace it with each upper crimped, as isnecessary iu machines ot' ordinary construction. Moreover, the coverbeing fastened to the form renders it possible to remove the upperwithout losing the crimp, as the cover being soft and pliable easilybends when removed. The upper, after being crimped, can readily beremoved from the t'orm or plate l while in motion, which avoids thenecessity of stopping the form to remove the work, as is customary inmachines ot` this class. ly reversing the position ofthe body Naudsccuringit in position by means ol" a piu passing through the hole .r inthe locking-bar S and into a hole, w, in the curved brace \V the platesP may be made to pass upward through the jaws It IIO Q. This is ofparticular advantage when the upper is reversed or turned right sido outto he crimped the second time, as it is much more easily placed upon theform for this purpose than upon the jaws in the ordinary manv ner,it being understood that uppers are usually crimped the first time with theunfinished side of the leather outward, because the jaws enA gage therough surface more readily and remove the wrinkles more effeetually.

My in'iprovement also saves time in the manipulation ot` theupper,as byplacing the hand flatly againstone side of the plate l) and grasping theflap ot' the upper on the other side it may be readily turned whilercmovingitt'rom the plate.

I am aware that leather-covered jaws and plates and corrugated jaws havebeen used in this class of machines, and I do not herein claim the samebroadly when in and ofthemsel ves considered.

Having thus explained my invention, what I claim isl. Vln acrimping-maehine, the combination ofa body provided with a track,sprocketwheels journaled on said body, an endless chain belt disposed onsaid sprocket-wheels, carriers fitted to travel on said track andcarrying crimping-plates, said carriers being connected with said belt,a pair of jaws, one of which is secured to said body and the otherhinged to a movable frame passing through said body and fixed jaw, meansfor moving said frame laterally and closing and opening thcjaws, andactuating mechanism for said chain, substantially as set forth.

2. In a eritaping-machine, the combination ofan adjustable oval-shapedbody provided with a track, an endless chain disposed on sprocket-wheelscarried by shafts journaled in said body, a series of carriers disposedon said track and actuated by said chain, crimpingplates detaehablysecured to said carriers, a txedjawonsaidbody,andamovablejawhinged to aframe-work fitted to slide laterally th rough said body and fixed jaw bywhich the distance between said jaws may bc regulated, substantially asdescribed.

3. In a crimpingmachine, the combination of an oval-shaped adjustablebody journaled on a shaft and provided with a track, an endless chainbelt disposed on a sprocket on said shaft and asprocket ou astub-shaftprojecting from said body, carriers attached to said chain and adaptedto slide on said track, a crimping-plate provided with a flexiblecovering and detaehably secured to each of said carriers, a fixed jawsecured to said body and provided with a corrugated crimping-surface, alocking-bar secured to said body and jaw for holding the same inposition, a frame fit ted to slide laterally through said body and jaw,a inovablcjaw hinged in said frame and having a corrugatedcrimpingsurface, and mechanism adapted to be released or let off by saidcarriers, whereby said frame may be moved and the distance between saidjaws regulated, substantially as set f'orth.

4. In a crimping-niachine, the combination ofa body journaled on adriving-shaft and provided with a track and a fixed crimpingjaw,carriers bearing crimping-plates disposed on said track and actuated byan endless chain belt driven by said shaft, alaterally-adju-table framefitted to slide in said body and jaw, a movable jaw hinged in saidtrame, a horizontally-arranged rod pivotcd in said body and projectinginto the path of said carriers, and a vertically-arranged bar pivoted tosaid rod and provided with a wedge-block adapted to engage a blockdisposed in a slotted stud on the rear of said fraaie, and a weightsecured to said stud, whereby when said carriers engage said rod anddisengagc said block said weight will force the movable jaw against thecrimping plate as it passes between the jaws, substantially described.

5. In a crimping-maehine, the combination of a body having a fixed jaw,a frame fitted to slide laterally in said body and jaw, a movable jawhinged to said frame, a slotted stud secured to said frame and providedwith a wedge-block, a cord and weight secured to said stud, a rodpivoted in said body above said jaws, a toggle-jointed rod pivoted insaid body below said jaws, and a vertical bar hinged to the rear end of'said rods and provided with a wedge adapted to engage the wedge in saidStud, substantially as set forth.

6. In a critaping-machine, thecombination of a framework provided withholes for receiving a locking-pin, an oval body journaled on adriving-shaft in said frame-work and provided with a track and a fixedcrimping-jaw, a sleeve on said shaft and secured to said body, a chainbelt disposed on a sprocket-wheel ou said shaft and on a sprocket on astub-shaft projecting from said body, carriers fitted to slide on saidtrack and secured to said chain, crimping-plates having flexiblecoverings and adapted to bc dctachably secured to said carriers, a framefitted to slide laterally in said body and jaw, a locking-bar secured tosaid body and jaw and provided with a piu-hole adapted to register withthe holes in said frame-work, a movable jaw hinged to said slidingframe, a screw for ad justing said jaw, and mechanism adapted to be letoff or operated by the crimping-plates, whereby said movable jaw may beforced against the leather on said plates as they pass, substantially asdescribed.

7. In a erimping-machine, the carrier r, provided with the slot 63,having the curved side (it and a dovctail groove on its outer edge, incombination with the crimping-plate I), provided with the dovctail block12 and flexible covering lit, substantially as set forth.

In a eritaping-machine, the oval body N,

journaled on the shaft L, and provided with the track O and chain belt20, in combination with the carrier r, secured to said chain and IOO ISO

fitted to slide on said iinek, and Lhe crimp` [mine T, having theslotted sind) und wedge` ing-plate P, Seenie'd t0 Snid emi-ier, Snhslnnibleek f1', in combination with Lhe xnovnhlejnw inillyns described. l,hinged t0 Said ilninie, and ineehnnimn E). In :i ei'inipinginnehine, theseinicileul ndnpied to he let off oif'ipei'niwl by the ei'inin 5 hirplate M, provided with the groove p and ingphit'es,wheiebysnidmnvnhlejzlw is l'oreed jonlnnied on the shnl't L, in emnbinntion with Iagainst the leather 0n ,mid plates, Snhst'nn the forked traveler 7S,provided with the pnliinlly ns deserihed. ley f for the 00rd m,euri-ying the weight n, I whereby the jaws 0f the eiinipei :we nnte l 1oinni icnlly adjust ed, SnhSl initially :is Het `0i'ih.

10. In n. erimping-nmehine, the slidingl HENRY DONOVAN. \\i nesses:

WM. A.. (Minnen, TnmnY F. Diashow.

